header {
    display: flex;
    justify-content: space-between;
    align-items: center; 
    padding: .05rem .1rem;
    background-color: #ff841d;
    color: #fff;
    text-align: center;

    .header_left {
        font-size: .28rem;
    }

    h3 {
        font-size: .22rem;
        font-weight: normal;
        margin-top: 0;
        margin-bottom: 0;
    }

    .download {
        
        span {
            font-size: .22rem;
        }
        p {
            font-size: .14rem;
            margin-bottom: 0;
        }
    }
}

.shangchengNav {
    padding: .1rem .4rem;
    a {
        padding: .08rem .05rem;
        background-color: #eee;
        border: .02rem solid #ccc;
        margin-bottom: .05rem;
        img {
            width: .16rem;
            margin-right: .05rem;
        }
        span {
            font-size: .14rem;
            line-height: 1;
            color: #000;
        }
    }
}